Test with a real BinaryField

tests/models.py

@@ -2,9 +2,14 @@
 
 from __future__ import absolute_import, unicode_literals
 
+from django.db import models
 from django.utils import six
 
 
 class NonAsciiRepr(object):
     def __repr__(self):
         return "nôt åscíì" if six.PY3 else "nôt åscíì".encode("utf-8")
+
+
+class Binary(models.Model):
+    field = models.BinaryField()

tests/panels/test_sql.py

@@ -113,23 +113,23 @@ def test_param_conversion(self):
             ('["Foo", true, false]', "[10, 1]", '["2017-12-22 16:07:01"]'),
         )
 
-    @unittest.skipIf(
-        connection.vendor in ("sqlite", "postgresql"),
-        "Mixing bytestrings and text is not allowed on PostgreSQL and SQLite",
-    )
     def test_binary_param_force_text(self):
         self.assertEqual(len(self.panel._queries), 0)
 
         with connection.cursor() as cursor:
-            cursor.execute("SELECT * FROM auth_user WHERE username = %s", [b"\xff"])
+            cursor.execute("SELECT * FROM tests_binary WHERE field = %s", [b"\xff"])
 
         self.panel.process_response(self.request, self.response)
         self.panel.generate_stats(self.request, self.response)
 
         self.assertEqual(len(self.panel._queries), 1)
-        self.assertEqual(
-            self.panel._queries[0][1]["sql"],
-            "SELECT * FROM auth_user WHERE username = '\ufffd'",
+        self.assertTrue(
+            self.panel._queries[0][1]["sql"].startswith(
+                (
+                    "<strong>SELECT</strong> * <strong>FROM</strong>"
+                    " tests_binary <strong>WHERE</strong> field = "
+                )
+            )
         )
 
     @unittest.skipUnless(connection.vendor != "sqlite", "Test invalid for SQLite")